Pile wire



Jan. 15, 1935. 5, DOCHERTY I 1,988,168

FILE WIRE Filed June 12, 1933 IN VENZOR Patented Jan. 15, 1935 UNITED orrcs ears RULE WIRE Virginia Application June 12, 1933, Serial No; 675,369

'7 Claims.

mounted within a head by which their control is effected, and by means of which they are applied one at a time to the pile fabric as it is being woven, and by means of which they are also withdrawn one at a time for the purpose of cutting pile threads. During the withdrawing operation, it frequently happens that the pile wire comes into a position in which its pile cutting edge strikes the head of the next adjacent pile wire, and this striking may result in injury to the cutting element. I This injury to the edge occurs particularly as a result of the fact that it is the generally ac cepted practice in the mill to bend wires adjacent the spoons, so as to cause the wires to hug the reed properly. It is also a well known fact that it frequently occurs that heads of pile wires become tilted. If therefore a pile wire, bent as referred to for purposes of hugging the reed, is withdrawn while adjacent to a head which is tilted, the inclined pile cutting edge will contact with the'head to effect the feather edge, and will possibly nick it and in any event affect the cutting operation and this effect on the operation will not be ascertainable until the carpet is finished.

It is therefore an object of my invention to eliminate such injury to the pile cutting edge during the retraction or cutting stroke of the pile wire.

I attain this object by providing the pile wire with a spacing element applied in such a position that it will not interfere with the normal operation of the pile wire, and will yet serve to separate the pile wire from the head of the adjacent pile wire to a sufiicient extent to eliminate the undesirable conditions mentioned.

The disclosure herein relates to two specific embodiments of my invention but it is to be understood that this embodiment is illustrative only and that my invention may be embodied in many other forms such as will readily suggest themselves to those skilled in the art, and that I do not limit myself to the exact form of invention herein-disclosed, nor do I limit myself otherwise than as defined in the claims.

For the attainment of the object mentioned and other objects as will hereinafter appear or be pointed out, I have illustrated my invention in the drawing, wherein:

Figure 1 is a front elevation of one form of my improved wire;

Figure 2 is a plan View thereof;

Figure 3 is an end view thereof; and

Figure dis a front elevation, similar to Figure 1, of another form of my invention.

Referring to the drawing in detail it will be observed that 10 indicates a pile wire provided with the cust mary spoon 12 at its free end. A portion of this spoon 12 extends above the level of the upper edge 11 of the pile wire, and serves to protect the blade or cutting element 16 which is disposed in a slot 17 in, the pile wire, and is retained therein by an overhanging portion of the slot and by the stop member 15. As this construction is well known, it is unnecessary to described it in detail.

Applied to or formed in one side of the spoon so as to extend laterally therefrom is a nub or protuberance 18. This protuberance so shaped dimensioned as to serve to engage the head of the next adjacent pile wire as each pile wire is withdrawn from the fabric during the cutting operation, and thereby prevents the sharpened edge of the blade or cutting element from contactin with or striking the head of the next adjacent pile wire.

The nub l3, besidesextending laterally, is prcferably located above the level of the upper edge ll of the wire 10, and it is further preferably located intermediate the cutting edge of the blade 16 and the tip of the spoon.

In this way the nub 18 will be located beyond the pile threads before withdrawal of the. pile wire, and also above the level of these threads, so that it will not catch nor in any other way adversely affect the action of the pile wire, nor, in particular, will it tend to open up the piles.

In Figure 4, I have shown another embodiment of my invention, the view being similar to that of Figure 1, and corresponding parts bearing the same reference numerals, except that they are primed. It isbelieved unnecessary to describe this form beyond calling attention to the nub 18, which is circular in conformation, this being made possible by the greater area available for placing it, since, as will be noted, the spoon 12' is very much wider than the stem 11. Becauseof this narrow stem portion this form is particularly adapted for certain types of pile fabrics.

Having thus described my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent, is:

1. A pile wire having a spoon at the free end thereof with portions extending above the level of the upper edge of the wire, and a cutting element having a cutting edge disposed above the level of the upper edge of the wire, but beneath the uppermost portions of the spoon, and a projection on the spoon extending outward from the surface thereof and toward the next adjacent pile wire while the wire is being withdrawn for its cutting stroke, and extending beyond the plane of the body of the wire said raised portion being located between the cutting edge of the cutting element and the spoon tip and extending above the plane of the upper edge of the wire, and serving to space said pile wire from the head of the adjacent pile wire.

2. A pile wire having a spoon at the free end thereof with portions extending above the level of the upper edge of the wire, and a cutting element having a cutting edge disposed above the level of the upper edge of the wire, but beneath the uppermost portions of the spoon, and a projection on the spoon extending laterally outward from the surface thereof and toward the next adjacent pile wire while the wire is being withdrawn for its cutting stroke, and extending beyond the plane of the body of the wire said raised portion being located between the cutting edge of the cutting element and the spoon tip and serving to space said pile wire from the head of the adjacent pile wire.

3. A pile wire having a spoon at the free end thereof with portions extending above the level of the upper edge of the wire, and a cutting element having a cutting edge disposed above the level of the upper edge of the wire, but beneath the uppermost portions of the spoon, and a projection on the spoon extending laterally outward from the surface of the wire toward the next adjacent pile wire while the wire is being withdrawn for its cutting stroke, said raised portion being located above the plane of the upper edge of the wire, and serving to space said pile wire from the head of the adjacent pile wire.

4. In a pile wire having a spoon at the free end thereof and said spoon having portions extending above the level of the upper edge of the wire, and a cutting element having a cutting edge disposed above the level of the upper edge of the wire and beneath the uppermost portions of the spoon; a raised portion on the spoon extending laterally outward from the surface of the wire in a direction away from the warp beam when the pile wire is in use, said raised portion being located between the cutting edge of said cutting element and the spoon tip and above the level of the upper edge of the body of the wire and serving to prevent said cutting element from striking the head of the adjacent pile wire.

5. In a pile wire, a spoon at the free end thereof having portions extending above the level of the upper edge of the wire, a cutting element having a cutting edge on said wire, and a portion on said spoon projecting laterally from the wire and serving to space it from the next adjacent wire and the head thereof when the wire is withdrawn for the cutting stroke, said raised portion being located between the cutting edge of the cutting element and the spoon tip and above the level of the upper edge of the wire and serving to space said pile wire from the head carrying the adjacent pile wire.

6. In a pile wire, a spoon at the free end thereof having portions extending above the level of the upper edge of the wire, a cutting element having a cutting edge on said wire, and a portion on said spoon projecting laterally outward from the wire and serving to space it from the next adjacent wire and the head thereof when the wire is withdrawn for the cutting stroke, said raised portion being located above the level of the upper edge of the body of the wire and serving to space said pile wire from the head carrying the adjacent pile wire.

7. In a pile wire having a spoon at the free end thereof, portions of which extend above the level of the upper edge of the wire and a raised portion on the spoon projecting laterally outward from the wire and between the same and the next adjacent wire when the wire is being withdrawn on its cutting stroke, said raised portion being located above the level of the upper edge of the wire and serving to prevent direct contact of said spoon with the head of the adjacent wire.

SAMUEL DOCHERTY. 

